Portable pier crane



Oct. 24, 1944. E. w. TAYLOR PORTABLE PIER CRANE Filed Oct. 22, 1945 5 Sheets-Shet 1 INVENTOR. E 1186f Oct. 24-, 1944. w TAYLOR\ I PORTABLE PIER CRANE Filed 001;. 22, 1945 3 Sheets-Sheet 2 IN V EN TOR.

PORTABLE PIER CRANE Filed Oct. 22, 1943 3 Sheets-Sheet 5 IN VEN TOR.

By 2 178671?! fif/an 5 E I, "1 11 4 11141 Patented Oct. 24, 1944 Ernest Taylor, Bay City, Mich, assignor to" The. Industrial B'rcwnhoist Corporation, Bay

(litygMich;

Application October 22, 1943, Serial No. 507,344

. S'Claims'. (Cl. 212-6) This invention relates}: to. portal pier cranes;

for; handling; all .kinds 1 of amaterials, .either' bulk materials of a fragmentary classifioation-suchas;

coal, ore, rocks, etc., or general cargo-such as machinery, steel; timbers; andcarticles of: a. similar-.nature.

One: of gthe prime objects of;the invention/is todesign a: freely;mobile-,. .fully revolvablepien crane-structure which can- .be.=moved .to anyv desired-position on. aipier, ,andwhichis provided. with opposed booms; for increasing the loading. and/or unloading range 'of 2 the machine, said. booms which when in lowered position; providing, acontinuous track from end-to end .to accommoedate a trolley and. bucket arrangement bymeans of which bulk-cargo such as lore,- coal, rock or other fragmentarymaterials may be transferred into or out of a boat, car.or-otherreceptacle, or to a stock pile at a minimum expense-and with. a substantial saving in time; labor; and equipment.

Another. object of the invention is. to design a. crane. structure. equipped, with, independently,

operated, opposed. booms, one 1 of which can be utilized as: arconventional crane boom for any purpose desired, while the opposite boom is swung downand serves as.-a.trolley.--track.for handling fragmentary materials.-

A further object is to providea-pier crane havingopposed booms, each boom being -independ-- ently operable so that one .boommay be picking up work while the opposite boom isdischarging, thus speeding up the-perati0n,reducing the swingtravelof thecraneproper, and materially shortening the loading or unloading operation.

A still furtherobject is to provide a mobile fixed base or supporting structure on which the revolving base andcrane mechanism is mounted, and

provide a hopper on said fixed base for receiving.

the-material being handled so that it can be held and transferred to transfer cars located in position to receive it.

Many other objects and purposes than those stated, all directed to the production of a relatively simple, durable, and practical machine of the kind stated, will appear as understanding of the invention is had from the following description taken in connection with the accompanying drawings, in which:

Fig. 1 is a side elevational view of my new portal pier crane, showing it mounted on a pier with a cargo vessel adjacent thereto; showing also a number of transfer cars in position on the pier, the solid lines showing the machine using a grab bucket for handling fragmentary materials; the broken lines showing the booms raised forhanbroken lines illustrating the. machine. being,

Fig. 3 is a fragmentary,-endelevational.view',v the boom etc.. being,;0mitted;

Fig. 4% is an enlarged. fragmentaryplan' view, showing one endoftheboomwithtroll'eyetcg,

and,

Fig. 5 .is a transverse.sectionaLview taken on the line 5.--5'-of-.Fig. 1. I

The machine shown is. designed for. use. on. a. general cargo-pier. for. handling any material that can be shipped. or .transferred,..,either coal; ore, scrap .iron, rock or other.fragmentarybulk. materials as well as heavy bulky.ob'jectsssuchas. machinery, fabricated. steel, vehicles. and. simi-' lar products.

It is 'of prime. importance that .boats andjcars.

be loaded and/or unloadedlin the shortestlpos sible. time, and. that theloading. andfunload-ing, equipment be simple, economical in operation, and capable ofliandling. anything that" can be shipped, and it is also essential that themachine. have considerable range .so that the material may, be spotted or piled at suflicient distance from the edge of the pier so as to provide alarge storage space or stockpile for piling, the materialsand/or cargo so thatthe boat or cars may be promptly, unloaded. and/or loadedlan'd released, or when" one or the other is not available.

Referring now more particularly, to the. drawings in which I have shown the preferred embodi; ment .of my invention, the machine. is shown mounted on a, pier P havingspaced apart track's Ill on which, the wheels-ll of equalizing, trucks. IZare mounted, these truck'sforminga partof the legs M of the fi'xed base structure l5which is movable on the tracks l0 so that it can be spotted in any desired location to suit the Work required.

Railroad tracks l'B are provided on the pier as shown and conventional railroad transfer cars I! operate on these tracks for loading, unloading or transfer as required, a truck hopper I8 being provided adjacent to tracks and bins I!) are also provided for storage of certain materials if and when desired. q

A rotating base 2| is mounted on the fixed base l5 and a full revolving crane structure '0 is mounted thereon, said structure including structural masts 2| and 22 respectively, suitably braced and tied together by members 23 to form a part of 'ing raised as indicated in broken for depositing in the bins stock pile if desired.

and 21 respectively being pivotally connected to, the opposite ends of the track at thepoint 28 and these booms are formed as clearly shown in Figs.

4 and 5 of the drawings, each boom including a pair of spaced apart channel members 29 adapted to accommodate the wheels 30 of a trolley member 3| from which thegrab bucket G is suspended in the conventional manner, a suitable rope system (not shown) being provided for operation of the trolley and opening and closing of the bucket as usual.

have perfected a very simple, substantial and effective all purpose machin for economically and rapidly handling fragmentary materials and cargo said carriage and including spaced apart masts,

a trolley track structure spanning the superstructure between said masts, independently actuated Suitable sheaves 32 are provided on the upper ends of the masts 2| and 22 and similar sheaves .33 are provided on the booms at a point spaced from the outer ends thereof, boom hoist ropes 34 being trained over the sheaves 32 and 33 and thence being wound on a drum (not shown) provided in the housing 24 so that each boom may be swung up to desired angle of inclination to suit the load and material to be handled.

, An operator's cab 35 is provided on and projects from the superstructure as shown so that a clear view of the vessel V and the loading or unloading operations may be had. I

A cargo hook 36 is provided on the outer end of the boom 26 and a hoist line 31 leads over sheaves 38, thence over sheaves 39 provided on the mast, and thence to a winding drum (not shown), provided in the housing 24, the boom belines, when cargois being handled.- i

A chute F is provided onthe rotating base 2| and a. hopper H is mounted on the fixed base [5 directly below said chute, so that material can bedischarged from the bucket G into the chute F, thence into the hopper H, and thence into one of the transfer cars I1, orthe bucket can discharge direct into the transfer cars or into the hopper H, if no car is available, or the material can be conveyed to the outer end of the boom 21 i9, hopper l8, or a It will be readily apparent that the opposed booms, 26 and 21 when in lowered position, together with theconnecting track 25 on the superstructure, forma continuous trackway from end to end, also that onejboom' may. be .used as a track for straight line operation while the'opposite boom is raised, and that'both booms may be raised to handle general cargo if desired the bucket being positioned in the chuteF. v

, track boomshingedly connected to the ends of said trolley track structure and adapted in one position and with the trolley track, to form a continuous track for traversing a trolley and the material being ha'ndled,'from the outer end of one track boom to the outer end of the opposite track boom, and in another ent booms for handling a variety of materials.

2. A material handling system of the class described, comprising in combination, a mobile supporting carriage adapted to be mounted for travel on a pier and spanning a plurality of railroad tracks and transfer cars, a fully r'evolvable superstructure, including spaced apart independent masts mounted on saidcarriage, a transversely disposed horizontal track section spanning said superstructure, and independent track booms hingedly connected to the opposite ends of said horizontal track section, saidbooms in one position forming a continuous track from the outer end of one boom to the outer end of the opposite boom for traversing a trolley thereon, and in another position forming independently operable booms, a chute on the superstructure, and a hopper mounted on said carriage and adapted to receive the material from said chute.

3, A material handling system of the character described, comprising a Wheeled base adapted to be mounted for travel on apier or support and spanning a plurality'of railroad tracks and cars,

a fully revolvable superstructure mounted on said base and including spaced apart vertically disposed independent masts, a horizontally disposed masts, independently operated track booms From the foregoing, it will be obvious that I hingedly connected to the opposite ends of the' track structure, and adapted in one position to form a continuous track from end to end of said booms fortraversing a trolley and material bucket thereon, said booms being independently raisable to function as crane booms, one boom being oper-- cargo, while the oppo able for handling general site boom serves as a track v for traversing a trolley thereon. A

, ERNEST W. TAYLOR.

position to form independ-' 

